LIQUID EJECTION HEAD, LIQUID CARTRIDGE, IMAGE FORMING APPARATUS, AND FLEXIBLE PRINTED BOARD

摘要

PROBLEM TO BE SOLVED: To reduction the size of a head applying a driving signal to a driving element by using a flexible printed board.

SOLUTION: An input terminal 21 connected to a printed wiring board 24 on which a bypass capacitor of two sheets of flexible printed boards 15 is mounted is set parallel to an output terminal 22 connected to the driving element. The length in a row direction of a driving element row of the input terminal 21 is not larger than a half of the length of the output terminal 22. A driving IC 16 is mounted on the flexible printed board 15. The number of connecting lines on the input terminal part 21 side is made smaller than the number of connecting lines on the output terminal 22 side. The driving IC 16 is mounted in an area which the inside of the width of the input terminal 21, and held between the input terminal 21 and the output terminal 22.

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